Coating



Aug. 28,' 1923. Y.

E'. NORDELL COATING APPLIANCE v Filed sept. 12, 1919 3 sheets-sheet 1 6 5 .A 6 6 A. l

1919 y 3 Sheets-Sheet 2 E. NORDELL COATING APPLIANCE Filed Sept. 12

. Aug. 28, 1923.

Fammi-0f".-

E. NORDELL COATING APPLIANCE algal@ will @f g 75 Patented Aug. 28,1923.

f are r f- ESKEL NORDELL, F CHICAGO, ILLINOS.

COMING ABBLXANGE., l

i Application le'd September 12, 1,919. Serial No.- 323,44@

i To all 'whom t may concern:

Be it known that I, EsKEL Nonnnnn, aV citizen of the United States, residing at Chicago, in the county of Cook and State of illinois, have invented certain new and useful improvements in Coating,` Appliances, of which the following` is a specification.,

My invention pertains to improvements in appliances for coating the top and bottom closures or caps of l'ibrous or permeable receptacles with a grease-proofing composition, although thel mechanism' is susceptible of use inV various otheradvantageous employments. l

The leading object of the invention vis to provide a mechanism simple in character and economical to manufacture, which will,

effectively and rapidly perform a smooth, uniform coating operation and properly remove the surplus coating material, the structure being such as to bereadily andv easily operate-d and unlikely' to become deranged or damaged in service.

To enable those skilled in this art to understand the construction of a desirable embodiment of this invention, aswell asl its various functional advantages, inthe accompanyingv drawings I have illustrated such an embodimentv ofthe invention and throughout the various views of such drawings likey reference characters refer to the' same parts. Y

In these drawings: l Figure l is an end elevation of the appliance.` certain of the parts being shown in I vertical section Ytor clearness of illustration;

Figure 2 is a plan view of the machine with parts broken away fora like purpose; Figure 3 is an enlarged vertical section through one of the liouid-dischargingnozzles on line 3-3 of Figure'2;

Figure 4 is a fragmentary frontelevation of a portion of the mechanism, a part-of the tray or trough being omitted to show one of the nozzlesj. A

Figure 5 is a vertical section VOnline 5-5 oi Figure 4 on an enlarged scale: v and Figure 6 isv avertioal'section vthrough the straining mechanism. 35', l f

vReferring; to the parts of themachine iny detail. it will be noted that the mechanism comprises a maind'ramej10v of' suitable 'form on which an electricfmotor 11 is mounted,

the latter rotating api'nion 12 inmesh with a vgear 13 on a shaft`14, the gearbeing ca# pahie' otdriving vthe 'shaft by reason Orta frictionyclutch roequipped" with ,an operata-i ing-sleeve-'16'slidalole, on the shaft by means of aglfiandle` or lever 17 ule'rumediontlie' frameat 18'.Y @bviousl-y, v I i form of clutch' may be employed. Shat 14s is"lrevolublyv supported;` inf bearingsY 19,' and at one 'en d it' is fitted; with a `s1 ur``gearv 20-AVV mesh withV a revolulolyfsuppwitted;` ema-'lier-spur-geai;I 2l Onasliaft 2 0,EL driving' a bevel-gear 21a, whichv co-operates: with' a horizontal bevel-,gear 22 on ashaft'2rotata bly mounted; in an enlargedl partforboss 24,A of a skeleton-frame ,25' supported froml the mains'frame by'bra'ckets, 26, 27, @Figure anyV convenient'.

At its top end shaft 213' carries a flanged cire cular disc 28' lover, which the* pasteboard', straw-board, or other fibrous cap orclosure 100 is adaptedy to be invertedfly fitted orthe coating operation.

Shaft 23 by meansof intermeshingfspurl gears 29 and 30 drives another adj acent upright shaft 3l provided at its ltop endy with a like flanged cap support. Six otherV of such shafts'SB are employed in two rows, as shown in` Figure 2, each of the shafts having Ya spur-gear 34' in mesh with all'k of; the adjacent gears, each. shaft at its top carryingA one of' the cap supports 35 like the part 28. By this means all' of thse rotary Vmembers 28. 32, andr 3 5, are Asi-niu-ltaneously revolved at lilge'speedsbygthe common driving` means;

vThese eight 'revolvingr supportingrvr members may be considered*asV divided into two groups of foureach. each set having asprayinfr nozzle discharging streams of the {C Qat in@ liquidl onAA to four of theV caps 0 1?` closures held on t'heriorrns` of each particular group, each' nozzle bei-ng centrally disposed with respect to its set of; revolvingcaps. all asis clearly illustra-ted in Figure2l,

YThese twolnozzles each have liquid-dischargingslig-htlfy downwardly-inclined passagesV 42. 43, one of each of such apertures playing its 'stream of coating-liquid upon one of' the fibrous caps or--clo'suresfon Vone of the revolvingc supports.Y v

The more orless viscous coating liquid the tank througha pipe 45 from'a mure?. a

not shown.y A liquid dischargeipipe "4G which reaches nearly to; the bottom of the 'I interior of the tanlfgdelivers the coating l'iq?"V uid through a strainer 4? to aeross-pi'pe'connection 48 by meanso which thelquid fed totwo valves 49, 49, supportedon hrack suitably-supported shaft 62, one face of thev worm-wheel having a cam-groove 63 cut therein. An armV 64 'is rockingly mounted on the main-fram@ at 65 and carries a roller 66 accommodated inthe cam-groove, the arm 1 64 'being connected by a link 67 with an arm 68 fastened to a jack-.shaft 69 revoluble in bearings 70, 70, of frame 25.

The sliding stem 71 of each of the valves 49' is tted with spaced collars 72, 72, between which isacCommOdated the bifurcated end portion 78 of an arm 74 fixed to the shaft 69, a spring 75 surrounding the lower portion of the valve-stem andrpressing upwardly against the lower collar 72. It will be understood, therefore, that by rocking shaft 69 the two valves may be opened or closed conjointly or simultaneously. J f n A dog 8O is pivoted on the face rof the worm-wheel 61 at 81 and is provided with a y coil-spring 82 tending to swing it on its hinge mounting forwardly against a` stoppin 83 .carried by Ithe worm-wheel, a rear stop-pin 84'projecting laterally from the face of the same wheel. Additionally, the appliance Vincludes a hook-arm 85 hinged on the lever 17 at 86 and limited as todown ward swinging by an abutmentor stop-pin 87 carried by the pivoted hook 85 and fitting in' an inclined slot or grooveY 88 oi' a stationary-strap 89 fastened to one of the bearings 19.

' ie operation of the appliance takes placev practically as follows: i

, Assuming that each` offthe rotary support-s 28, 32, and 35 is tted with an' inverted pasteboard, straw-board or other fibrous flanged container cap or closure 100, the operator shift-s or rocks thehandle 17 to the left as the parts are vie-wed in Figure 1, thereby rendering the clutch .15 operative ik variousgears'21, 22, 29, 30, and 34, lresult# to connect the1driving-gear18 toV the shaft 14. Immediately, the rotation of the motor-pinion 12 is transmitted through the gearlltotheshaft 14 and through the ing inthe simultaneous rotation of all of thel inverted cup-shaped'members 100. and theirsupports. The cam-groove 63 is so shapedfthat upon the institution of the ro-Y 'v gtation-of1V the parts specified, the twov Valves 49, f49, by reason of therocking of shaft 69 through thel vconnections 67, 68, will be the fiat tops of the caps or closures near their centers, and, owing tothe rapid rotation of the caps, the streams of liquidwill take a somewhat spiral path, as illustrated in Figure 2, whereby the top surfaces ci"V all eight caps will be adequately coatedvor covered with thev solution. At the saineY time, these A two nozzles discharge eight lower streams 101 from Atheir apertures against the sides or flanges of the caps or closures near their top edges, the liquidV flowing down such sides and effecting a complete coating thereof, the surplus vcoating liquid from all of the streams being thrown ofi' Lby centrifugal force and received in aY rect-angular; pan provided with eight flange-bordered apertures V111 in its `bottom wall for `the upward extension therethrough of the various shafts carrying the fiat rotary cap supports. From such receptacle 110 the surplus liquid is drained olf through a pipe' 112 and may be used a second time.y Y l Afterthese nozzle'streams have played on the caps undergoing treatment for a suitable length of time,say 15 seconds, the valves are automatically closed bythe acf t-ion of thecam, but the caps andv their supports continue4 their rotation for approximately V25 seconds 1longer to enable them to 'throw ofl" the surplus coating liquid under the action of centrifugal force, thus giving the edges of theflanges a smooth drip edge. y w A When the worin-wheel 61 has completed one revolutionthe dog or catch 8Ov engages the hook 85 and swings the arm 17 vto the right, as the parts are viewed in Figure 1, rendering the clutch 15 inoperative,-thereby disconnecting the shaft14 from the driving mechanism. y right, it,` is, at' kthe same time,Y raised or lifted somewhat by reason 'of the engagement of its pin 87 with' the inclined slot or groove 88, and as the'parts continuetheir rotation due to their momentum afterthe separation .of the clutch elements, the .dog 8O will snap. free from the hook. 85 r just previous to the parts coming to a standstill', so that `to again initiate the-rotation of the elements, it is merelyv necessary to `shift or rock the handle 17 to; the left, as described above.1

As has, been indicated, the upper streams leo lio

As the hook 85 movesto the of coating liquid strike the fiat or revolving' surfaces of the caps or closures at or near their centers and then assume a somewhatl spiral path owing tot the compound action of their 1velocity of issue from the discharge nozzles and the rotation of the caps, assuring a complete and adequate coaiting of the surfaces tcwhich they are applied. It is to be observed that these upper streams ofcoating material have only a slight vertical drop in passing from the nozzles to the re? volving caps and are hence discharged upon the latter almost horizontally, and by reason of this construction the original velocity or speed of flow of the stream is not detrimenfta-lly cut down so as to hinder the adequate flow of the stream over the top surface of the cap.

The side streams which rstrike the cap Yflanges near their top edges spatter back or upwardly sufficiently to provide a full and complete coating of these sides. t

The coating liquid being somewhat viscous there is a tendencyfor the air in the f advantage particularly on the flange or sides of the cap which assure complete and` even coating thereof.

Although I havedescribed and illustrated .in detail one embodiment of this invention, it is to be understood that the latter is susceptible of a variety of embodiments embodying the main and principal features of the invention. The eXact and precise structural features shown and described are not an essential part of the invention and these may be varied or modified within comparatively wide limits without departure from the substance and essence of the invention and without the sacrifice of any of its material benefits and advantages.

I claim l. In a coating-appliance of the character described. the combination of a horizontal disc adapted to support a flanged cap fitted thereover, means to revolve said disc and cap, means to lay a stream of coating liquid nearly horizontally-on to the cap near but not at the center of the unobstructed top thereof and a downwardly inclined stream slightly below the top edge of the depending flange of the cap, substantially as described.

2. In a coating-appliance of the character described, the combination of a horizontalcircular disc adapted to support a flangedV cap fitted thereover, means to revolve said disc and cap, means to play a stream of coating liquid nearly horizontally on to the cap near but not at the center of the unob-` structed top thereof and a downwardly in- Y clined stream slightly below the top edge of the depending flange of the cap, and auto- .matically-acting means to stop the playing of said streams permitting the capto re,- volve after such Vcessation to even the coatling and throw off the surplus liquid by centrifugal force, substantially as described.

3. In a coating-appliance of the character described, the combination of a horizontal disc adapted to support a flanged cap iitted thereover, means to revolve'said disc and cap, and means to play a stream of coating liquid nearly horizontally on to theunobstructed middle portion of the top surface of the cap near but not at the eXact center Y thereof and during the rotation of the cap, u

substantially as described.

4. In an appliance of the character described, the combination of a plurality of discs each adapted to have al flanged cap f fitted thereover, means to revolve said discs, and means common to all of said discs to play streams of coating liquid simultaneously on their caps during the rotation of the latter, substantially as described. i

5. In an appliance of the character described, the combination of a plurality of discs each adapted to have a flanged cap fitted thereover,-means to revolve said discs, means common to all of said discs to play streams of coating liquid simultaneously on to their caps during the rotation of the latter, and means controlling said streams of coating liquid to cause their cessation and to permit such discs and caps to revolve thereafter to even their coatings and discharge the surplus coating material from the caps by cen- 

